(b) The amount of air available to a person is less than that available on the ground. https://www.tiwariacademy.com/ncert-solutions/class-7/science/chapter-10/
(b) The amount of air available to a person is less than that available on the ground.
During heavy exercise, we get cramps in the legs due to the accumulation of (ii) lactic acid. https://www.tiwariacademy.com/ncert-solutions/class-7/science/chapter-10/
During heavy exercise, we get cramps in the legs due to the accumulation of (ii) lactic acid.
Normal range of breathing rate per minute in an average adult person at rest is (ii) 15–18. https://www.tiwariacademy.com/ncert-solutions/class-7/science/chapter-10/
Normal range of breathing rate per minute in an average adult person at rest is (ii) 15–18.
The mountaineers carry oxygen with them because:
(b) The amount of air available to a person is less than that available on the ground. https://www.tiwariacademy.com/ncert-solutions/class-7/science/chapter-10/
(b) The amount of air available to a person is less than that available on the ground.
https://www.tiwariacademy.com/ncert-solutions/class-7/science/chapter-10/
See lessDuring heavy exercise, we get cramps in the legs due to the accumulation of
During heavy exercise, we get cramps in the legs due to the accumulation of (ii) lactic acid. https://www.tiwariacademy.com/ncert-solutions/class-7/science/chapter-10/
During heavy exercise, we get cramps in the legs due to the accumulation of (ii) lactic acid.
https://www.tiwariacademy.com/ncert-solutions/class-7/science/chapter-10/
See lessDuring exhalation, the ribs
During exhalation, the ribs (ii) move downwards. https://www.tiwariacademy.com/ncert-solutions/class-7/science/chapter-10/
During exhalation, the ribs (ii) move downwards.
https://www.tiwariacademy.com/ncert-solutions/class-7/science/chapter-10/
See lessNormal range of breathing rate per minute in an average adult person at rest is:
Normal range of breathing rate per minute in an average adult person at rest is (ii) 15–18. https://www.tiwariacademy.com/ncert-solutions/class-7/science/chapter-10/
Normal range of breathing rate per minute in an average adult person at rest is (ii) 15–18.
https://www.tiwariacademy.com/ncert-solutions/class-7/science/chapter-10/
See lessIn cockroaches, air enters the body through
In cockroaches, air enters the body through (iii) spiracles. In cockroaches, air enters the body through (iii) spiracles.
In cockroaches, air enters the body through (iii) spiracles.
In cockroaches, air enters the body through (iii) spiracles.
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